ie, claimed results with no science to back it up.
I did find the reference and will look it up the next time I'm at the University library.:
Non-dietary risk factors for gastric dilatation-volvulus in large and giant breed dogs
Lawrence T. Glickman, Nita W. Glickman, Diana B. Schellenberg, Malathi Raghavan, and Tana Lee
Nov 15 2000
Journal of the American Veterinary Medical Association